20 pc Brown N.O. Recessed Door Contacts (NORMALLY OPEN) Alarm Door Window Sensors With Magnetic Reed Switch.

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20 Brown ABS Normally Open Door Contact Switch .2 Amp Maximum Switch Current Will make Sense Door Closer at Roughly ¾” or 15mm This Contact Works with Any Access Control or Burglar Alarm System Available NORMALLY OPEN: When the door or window is open, the contact will give an closed...

  • 20 Brown ABS Normally Open Door Contact Switch
  • .2 Amp Maximum Switch Current
  • Will make Sense Door Closer at Roughly ¾” or 15mm
  • This Contact Works with Any Access Control or Burglar Alarm System Available
  • NORMALLY OPEN: When the door or window is open, the contact will give an closed signal and when the door is closed the contact will give a open (circuit) signal.